Teradyne private Leaderboard for adventofcode.com/2022
| Day | Stars | Comments (SPOILER ALERT!) |
|---|---|---|
| 1: Calorie Counting | ⭐⭐ | Sum Calories by elf, find max elf. Add sorting to find sum of top 3 elves. |
| 2: Rock Paper Scissors | ⭐⭐ | Circular buffer for game logic |
| 3: Rucksack Reorganization | ⭐⭐ | Find dups, then find dups in groups |
| 4: Camp Cleanup | ⭐⭐ | Parsing input data could have been done in about 10 minutes in VS Code. Took more than 1 hour in code. :( |
| 5: Supply Stacks | ⭐⭐ | Parsing two types of data was a pain, took much more time than algo did. Crates section of input had to be transposed so columns were vectors of crates instead of rows. Used pop/push for part 1. Used temporary storage and vec.append() for part 2. Didn't visualize. :( |
| 6: Tuning Trouble | ⭐⭐ | Protocol-aware puzzle -- write start-of-packet marker detection routine |
| 7: No Space Left On Device | ⭐⭐ | Terminal output parsing for directory structure/navigation. Tried/failed to use Trees crate. Tracked directory sizes in HashMap with full path as key. |
| 8: Treetop Tree House | ⭐⭐ | Simple elevation gradient algos in 4 directions |
| 9: Rope Bridge | ⭐⭐ | Weird rope knot dynamics -- tried/failed to visualize with animation via CrossTerm::Cursor::MoveTo. :( |
| 10: Cathode-Ray Tube | ⭐⭐ | Very simple ALU with 2 op codes. Part 2 prints pixels for the human to read. |
| 11: Monkey in the Middle | ⭐⭐ | Difficult puzzle for 3 reasons: 1) Input didn't lend itself to parsing. Instead, I maniputlated input text into data structure syntax; 2) One piece of data was a function -- a lambda function; 3) Had to figure out how to "limit" intermediates, without further instructions, just "figure it out". |
| 12: Hill Climbing Algorithm | ⭐⭐ | |
| 13: Distress Signal | ⭐⭐ | |
| 14: Regolith Reservoir | ⭐⭐ | Filling Fast Fun! With sand! References 2018's Day 17: Reservoir Research, but I rewrote from scratch. Faster? Animation opportunity. |
| 15: Beacon Exclusion Zone | ⭐⭐ | Brute force barely works in part 1. Part 2 was kinda brutal. |
| 16: Proboscidea Volcanium | HARD! Valves, flow rates, paths. Weighted Graph Algo, Maximum/Minimum Spanning Trees, greedy algorithms, all paths? Ugh. Reduce and enumerate worked for example. :( | |
| 17: Pyroclastic Flow | ⭐⭐ | Tetris with volcanic rocks! Part 2 is an annoying repetition detection thing. A spreadsheet helps. Also helps to realize repetition implies, THE WHOLE OF THE DATASET will repeat, so ANY part of it also repeats. |
| 18: Boiling Boulders | ⭐⭐ | Finding air in 3-space. Part 2 is finding open air only. |
| 19: Not Enough Minerals | Robot factory processing Clay, Ore, Obsidian, Geode. | |
| 20: Grove Positioning System | Seemingly simple unscramble. Anything but!! Reverse-Scramblng a list of indices to original (untouched) list. Works for examples, not puzzle. | |
| 21: Monkey Math | ⭐⭐ | Part 1 simple algebra chain from known to answer. Part 2 creates a Jeopardy portion, where the answers are known, the inputs aren't. |
| 22: Monkey Map | ⭐⭐ | Part 1 is weird with space on map. Part 2 is brutal with the extra complexity folded in (pun intended). ~2 days effort! |
| 23: Unstable Diffusion | ⭐⭐ | NSWE Elvish Diffusion. Just follow the numerous rules. |
| 24: Blizzard Basin | ⭐⭐ | 4 variants of blizzard treated as groups, move anywhere possible from all possible positions so far. Done as soon as you reach the end. |
| 25: Full of Hot Air | ⭐ | Snafu numbers (like Roman numerals) -- Tricky. |